Got a (fake) SMS text from this number, and decided to look it up and research:

Description:  DATING SITES
Gender: Female
Phone: Cellco Partnership DBA Verizon Wireless - Ca | Mobile
Address: ****** Delaware AvE, Unit 130, Santa Cruz, CA
Website: artemisorganization.tripod.com/id3.html -1 831 234 4171.

DO NOT TRUST THIS cell phone numbers. Holly: 1 831 234 4171. Sara: 1 831 818 3186. Rachel: 1 831 239 8382.